This is a ponzi scheme. One of the guy who promotes Firstcoin was a developer for masknetwork (if anyone knows the project). The project masknetwork had an ICO and they've ran with all the money. All investors who got into masknetwork got scammed badly. The name of the developer is Coman Andrei:
his facebook profile in which he promotes firstcoin: https://www.facebook.com/coman.andrei94 and the mask network project http://masknetwork.com/ . You can check bitcointalk aswell to see that they are scammers. Enjoy !